MethodBuilder.SetMarshal(UnmanagedMarshal) MethodBuilder.SetMarshal(UnmanagedMarshal) MethodBuilder.SetMarshal(UnmanagedMarshal) Method

Definition

Warning

This API is now obsolete.

Sets marshaling information for the return type of this method.

public:
 void SetMarshal(System::Reflection::Emit::UnmanagedMarshal ^ unmanagedMarshal);
[System.Obsolete("An alternate API is available: Emit the MarshalAs custom attribute instead.")]
[System.Obsolete("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202")]
public void SetMarshal (System.Reflection.Emit.UnmanagedMarshal unmanagedMarshal);
member this.SetMarshal : System.Reflection.Emit.UnmanagedMarshal -> unit

Parameters

unmanagedMarshal
UnmanagedMarshal UnmanagedMarshal UnmanagedMarshal

Marshaling information for the return type of this method.

Exceptions

The containing type was previously created using CreateType().

-or-

For the current method, the IsGenericMethod property is true, but the IsGenericMethodDefinition property is false.

Examples

The code sample below illustrates the contextual usage of the SetMarshal method to marshal the results of a method call as a different type.

array<Type^>^ temp0 = { String::typeid };
MethodBuilder^ myMethod = myDynamicType->DefineMethod( "MyMethodReturnsMarshal",
                          MethodAttributes::Public,
                          UInt32::typeid,
                          temp0 );

// We want the return value of our dynamic method to be marshalled as
// an 64-bit (8-Byte) signed integer, instead of the default 32-bit
// unsigned int as specified above. The UnmanagedMarshal class can perform
// the type conversion.

UnmanagedMarshal^ marshalMeAsI8 = UnmanagedMarshal::DefineUnmanagedMarshal(
                                  System::Runtime::InteropServices::UnmanagedType::I8 );

myMethod->SetMarshal( marshalMeAsI8 );

MethodBuilder myMethod = myDynamicType.DefineMethod("MyMethodReturnsMarshal",
					MethodAttributes.Public,
					typeof(uint),
					new Type[] { typeof(string) });

// We want the return value of our dynamic method to be marshalled as 
// an 64-bit (8-byte) signed integer, instead of the default 32-bit
  	// unsigned int as specified above. The UnmanagedMarshal class can perform
// the type conversion.

UnmanagedMarshal marshalMeAsI8 = UnmanagedMarshal.DefineUnmanagedMarshal(
			         System.Runtime.InteropServices.UnmanagedType.I8);	

myMethod.SetMarshal(marshalMeAsI8);	

 Dim myMethod As MethodBuilder = myDynamicType.DefineMethod("MyMethodReturnsMarshal", _
MethodAttributes.Public, GetType(System.UInt32), _
New Type() {GetType(String)}) 
 
 ' We want the return value of our dynamic method to be marshalled as 
 ' an 64-bit (8-byte) signed integer, instead of the default 32-bit
 ' unsigned int as specified above. The UnmanagedMarshal class can perform
 ' the type conversion.

 Dim marshalMeAsI8 As UnmanagedMarshal = UnmanagedMarshal.DefineUnmanagedMarshal( _
      System.Runtime.InteropServices.UnmanagedType.I8)
 
 myMethod.SetMarshal(marshalMeAsI8)

Applies to